CN205790245U - Winding device for lithium-ion battery winding machine - Google Patents

Abstract

The utility model relates to a take-up device of lithium ion battery winder, including diaphragm hold-down mechanism, spool mechanism, elevating system, subsides termination tape mechanism and diaphragm shutdown mechanism, diaphragm hold-down mechanism installs at the work panel middle part, and elevating system installs in diaphragm hold-down mechanism below, and elevating system controls the whole lift of diaphragm hold-down mechanism, adopts the utility model discloses a during take-up device convolutes the pole piece, elevating system drive diaphragm hold-down mechanism shifts up, and diaphragm hold-down mechanism compresses tightly the diaphragm and prevents that it from walking, and spool mechanism is positive and negative pole piece, diaphragm coiling an organic whole into electric core, and diaphragm shutdown mechanism cuts off the diaphragm, pastes termination tape mechanism and prevents its scattering for electric core surface rubberizing, accomplishes the coiling processing, and full process automation degree is high, and processing is consuming time few, is applicable to the pole piece.

Description

Winding device for lithium-ion battery winding machine

technical field

The utility model relates to a battery winding machine, in particular to a winding device of a lithium ion battery winding machine.

Background technique

At present, the cell rolls of lithium-ion batteries are all wound by the positive electrode sheet, negative electrode sheet, and separator through the winding device of the winding machine. However, the current winding device has a complicated structure and cumbersome operation steps. It is used for winding conventional models, the range of use is not wide, the processing is time-consuming, and it cannot well meet the actual production needs of special models.

Utility model content

In order to solve the above problems, the utility model provides a reasonable and convenient winding device, the specific technical scheme is as follows:

The winding device of the lithium-ion battery winding machine includes a diaphragm pressing mechanism, a reel mechanism, a lifting mechanism, a termination tape mechanism and a diaphragm cutting mechanism. The diaphragm pressing mechanism is installed in the middle of the working panel, and the lifting mechanism is installed in the diaphragm pressing mechanism. Below, the lifting mechanism controls the overall lifting of the diaphragm pressing mechanism. The diaphragm pressing mechanism presses and fits the two diaphragms. The diaphragm separates the positive and negative electrodes. The tape termination mechanism applies glue to the wound pole pieces.

Preferably, the diaphragm pressing mechanism includes a left diaphragm driving mechanism and a right diaphragm driving mechanism, the left diaphragm driving mechanism drives the diaphragm on the left side to move, the right diaphragm driving mechanism drives the diaphragm on the right side to move, and the two diaphragms are placed on the left side of the diaphragm driving mechanism. It is pressed tightly with the right diaphragm driving mechanism, the negative electrode is located inside the left diaphragm and the right diaphragm, and the positive electrode is located outside the right diaphragm.

Preferably, the lifting mechanism includes a first motor, a first pulley, a first belt, a second pulley, a screw, a screw flange seat, a flange seat mounting plate and a mounting plate, and the output shaft of the first motor is fixedly connected to the second One pulley, the first pulley is connected to the second pulley through the rotation of the first belt, the second pulley is fixedly connected to the screw, the screw nut is arranged in the screw flange seat, the screw thread is connected to the screw flange seat, the screw flange The seat is fixedly mounted on the flange seat mounting plate, the flange seat mounting plate is fixedly mounted on the mounting plate, and the diaphragm pressing mechanism is fixedly mounted on the mounting plate.

Preferably, the reel mechanism includes a second motor, a third pulley, a second belt, a fourth pulley, a rotating shaft, a rolling needle, a needle rolling nozzle and a first cylinder, the output shaft of the second motor is fixedly connected to the third pulley, and the third The pulley is connected to the fourth pulley through the rotation of the second belt, and the fourth pulley is fixedly connected to the rotating shaft. The winding needle is installed in front of the rotating shaft, and the rear of the rotating shaft is connected to the rotating shaft mounting plate through bearing rotation. The first cylinder piston rod is connected to the rotating shaft mounting plate, and the rolling needle can be inserted into the rolling needle in the mouth.

Preferably, the diaphragm cutting mechanism includes a second cylinder, a cutter, a third cylinder and a cutter backing plate, the piston rod of the second cylinder is fixedly connected to the cutter, the front of the cutter is provided with sawtooth, and the piston rod of the third cylinder is fixedly connected to the cutter. Knife backing plate, the cutter backing plate is provided with the groove that cooperates with cutter.

Preferably, the left diaphragm driving mechanism includes a fourth cylinder, a left large pressure roller, a mounting seat for a large left pressure roller, a fifth cylinder, a first connecting plate, a small left pressure roller and a mounting seat for a small left pressure roller, and the fourth cylinder The piston rod is fixedly connected to the left large pressure roller mounting seat, the left large pressure roller is installed in front of the left large pressure roller mounting seat, the piston rod of the fifth cylinder is fixedly connected to the first connecting plate, and the two sides of the first connecting plate are connected to the left small pressure roller through tie rods. Seat, the left small pressure roller is installed in the front of the left small pressure roller mounting seat, and the left large pressure roller and the left small pressure roller jointly drive the diaphragm on the left side to move.

Preferably, the right diaphragm drive mechanism includes a sixth cylinder, a second connecting plate, a first right pressure wheel, a mounting seat for the first right pressure wheel, a seventh cylinder, a third connecting plate, a second right pressure wheel, a right second pressure wheel The second pressure roller mounting seat, the eighth cylinder, the fourth connecting plate, the right small pressure roller and the right small pressure roller mounting seat, the piston rod of the sixth cylinder is fixedly connected to the second connecting plate, and the second connecting plate is connected to the right side through the tie rods on both sides. The first pressure roller mounting seat, the right first pressure roller is installed in front of the right first pressure roller mounting seat, the piston rod of the seventh cylinder is fixedly connected to the third connecting plate, and the third connecting plate is connected to the second right pressing roller through the tie rods on both sides. seat, the right second pressure roller mounting seat is installed in front of the right second pressure roller, the eighth cylinder piston rod is fixedly connected to the fourth connecting plate, the fourth connecting plate is connected to the right small pressure roller mounting seat through the pull rods on both sides, and the right small pressure roller The right small pressure roller is installed in the front of the mounting seat.

Preferably, the tape application termination mechanism includes a ninth cylinder, a rubber application wheel, a rubber application wheel rotating shaft, a rubber application wheel rotating shaft mounting seat and a third motor, the piston rod of the ninth cylinder is fixedly connected to the rubber application wheel rotating shaft mounting seat, and the rubber application The rotating shaft of the wheel is connected to the mounting seat of the rotating shaft of the rubberizing wheel in rotation, the rotating shaft of the rubberizing wheel suits the rubberizing wheel, and the third motor drives the rotating shaft of the rubberizing wheel to rotate.

Preferably, a slide block is provided behind the installation plate, a slide rail is provided on the working panel, and the slide block is slidably connected to the slide rail.

Preferably, it also includes a pole piece outsourcing adsorption mechanism that prevents the pole piece from being cut off by the diaphragm cutting mechanism. The pole piece outsourcing adsorption mechanism includes a tenth cylinder, a rocker arm parent part, a rocker arm sub-piece, a rocker arm shaft and a pole piece suction part , the piston rod of the tenth cylinder is fixedly connected to the rocker arm mother part, the rocker arm mother part is 匚-shaped, the rocker arm mother part is engaged with the rocker arm part, the rocker arm part is fixedly connected to one end of the rocker arm shaft, and the other end of the rocker arm shaft is fixedly connected Pole suction piece.

Beneficial effects of the utility model: when the winding device of the utility model is used to wind the pole piece, the lifting mechanism drives the diaphragm pressing mechanism to move up and down, the diaphragm pressing mechanism presses the diaphragm, and the reel mechanism winds the positive and negative pole pieces and the diaphragm Integrate into a battery cell, the diaphragm cutting mechanism cuts the diaphragm, and the termination tape mechanism sticks tape on the surface of the cell to prevent it from spreading, and completes the winding process. The whole process is highly automated and takes less time to process. It is suitable for the processing of pole pieces of different sizes. .

Description of drawings

Fig. 1 is the perspective view of the winding device of the present utility model;

Fig. 2 is the front view of the winding device of the present invention installed on the working panel;

Fig. 3 is a perspective view of the diaphragm pressing mechanism 1 of the present invention;

Fig. 4 is a perspective view of the left diaphragm driving mechanism of the present invention;

Fig. 5 is a perspective view in another direction of the left diaphragm driving mechanism of the present invention;

Fig. 6 is a perspective view of the right diaphragm driving mechanism of the present invention;

Fig. 7 is a perspective view of the lifting mechanism of the present utility model;

Fig. 8 is a perspective view of the reel mechanism of the present utility model;

Fig. 9 is an exploded view of the reel mechanism of the present invention;

Fig. 10 is a perspective view of the diaphragm cutting mechanism of the present invention;

Fig. 11 is the three-dimensional view of sticking stop tape mechanism of the present utility model;

Fig. 12 is a perspective view of the pole piece outsourcing adsorption mechanism of the present invention.

In the figure, 1—diaphragm pressing mechanism, 11—left diaphragm driving mechanism, 111—fourth cylinder, 112—left large pressure roller, 113—left large pressure roller mounting seat, 114—fifth cylinder, 115—first connection Plate, 116—left small pressure wheel, 117—left small pressure wheel mounting seat, 12—right diaphragm driving mechanism, 121—sixth cylinder, 122—second connecting plate, 123—right first pressure wheel, 124—right first A pressure roller mounting seat, 125—the seventh cylinder, 126—the third connecting plate, 127—the second right pressure roller, 128—the second right pressure roller mounting seat, 129—the eighth cylinder, 1210—the fourth connecting plate, 1211—right small pressure wheel, 1212—right small pressure wheel mounting seat, 2—reel mechanism, 21—second motor, 22—third pulley, 23—second belt, 24—fourth pulley, 25—rotating shaft, 26 —needle roll, 27—needle roll nozzle, 28—the first cylinder, 29—rotating shaft mounting plate, 3—lifting mechanism, 31—the first motor, 32—the first pulley, 33—the first belt, 34—the second pulley . 42—rubbing wheel, 43—rotating shaft of rubberizing wheel, 44—mounting seat of rotating shaft of rubberizing wheel, 45—third motor, 5—diaphragm cutting mechanism, 51—second cylinder, 52—cutter, 53—third cylinder , 54—cutter backing plate, 6—working panel, 7—pole piece outsourcing adsorption mechanism, 71—tenth cylinder, 72—rocker arm parent part, 73—rocker arm component, 74—rocker arm shaft, 75—pole Sheet suction.

detailed description

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further:

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred position or element must have a specific orientation, to use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention depending on the specific circumstances.

As shown in Figure 1 and Figure 2, the winding device of the lithium-ion battery winding machine includes a diaphragm pressing mechanism 1, a reel mechanism 2, a lifting mechanism 3, a stop tape sticking mechanism 4 and a diaphragm cutting mechanism 5, and the diaphragm pressing mechanism 1. The lifting mechanism 3, the termination tape mechanism 4, the diaphragm cutting mechanism 5 is installed in front of the working panel 6, the reel mechanism is installed behind the working panel 6, the diaphragm pressing mechanism 1 is installed in the middle of the working panel 6, and the lifting mechanism 3 is installed in the diaphragm Below the pressing mechanism 1, the lifting mechanism 3 controls the overall lifting of the diaphragm pressing mechanism 1. The diaphragm pressing mechanism 1 presses and fits the two diaphragms. After the two diaphragms separate the positive and negative electrodes, the reel mechanism 2 is equipped with poles. The two diaphragms of the sheet are wound and processed into an integrated cell roll, and the termination tape mechanism 4 is used to apply glue to the wound pole sheet.

As shown in Figure 3, the diaphragm pressing mechanism 1 includes a left diaphragm driving mechanism 11 and a right diaphragm driving mechanism 12, the left diaphragm driving mechanism 11 drives the left diaphragm to move, and the right diaphragm driving mechanism 12 drives the right diaphragm to move, two pieces The diaphragm is pressed together by the joint pressing of the left diaphragm driving mechanism 11 and the right diaphragm driving mechanism 12. The negative electrode sheet is placed inside the left diaphragm and the right diaphragm, and the positive electrode sheet is placed outside the right diaphragm. The positive and negative electrode sheets and the diaphragm pass through The left diaphragm driving mechanism 11 and the right diaphragm driving mechanism 12 are tightly fitted together, which is convenient for subsequent winding processing.

Specifically, as shown in Figure 4 and Figure 5, the left diaphragm driving mechanism 11 includes a fourth cylinder 111, a left large pressure roller 112, a left large pressure roller mounting seat 113, a fifth cylinder 114, a first connecting plate 115, a left small The pressure roller 116 and the left small pressure roller mounting seat 117, the piston rod of the fourth cylinder is fixedly connected to the left large pressure roller mounting seat 113, the left large pressure roller mounting seat 113 is installed in front of the left large pressure roller 112, and the left large pressure roller 112 can rotate freely , the piston rod of the fifth cylinder is fixedly connected to the first connecting plate 115, and the two sides of the first connecting plate 115 are connected to the left small pressure wheel mounting seat 117 through a pull rod, and the left small pressure wheel mounting seat 117 is installed in front of the left small pressure wheel 116, and the left small pressure wheel The wheel 116 can rotate freely, the piston rod of the fourth cylinder 111 stretches out to drive the left large pressure wheel mounting seat 113 to move forward, the left large pressure wheel mounting seat 113 drives the left large pressure wheel 112 to move forward, and the fifth cylinder 114 piston rod extends to drive The left small pressure roller mount 117 moves forward, the left small pressure roller mount 117 drives the left small pressure roller 116 to move forward, and the left large pressure roller 112 and the left small pressure roller 117 jointly drive the diaphragm on the left side to move.

Specifically, as shown in Figure 6, the right diaphragm drive mechanism 12 includes a sixth cylinder 121, a second connecting plate 122, a first right pressure roller 123, a first right pressure roller mounting seat 124, a seventh cylinder 125, a third connection Plate 126, right second pressure roller 127, right second pressure roller mount 128, eighth cylinder 129, fourth connecting plate 1210, right small pressure roller 1211 and right small pressure roller mount 1212, the sixth cylinder piston rod is fixed Connect the second connecting plate 122, the second connecting plate 122 is connected to the right first pressure wheel mounting seat 124 through the pull rods on both sides, the right first pressure wheel mounting seat 124 is installed in front of the right first pressure wheel 123, the right first pressure wheel 123 It can rotate freely, and the piston rod of the seventh cylinder is fixedly connected to the third connecting plate 126. The third connecting plate 126 is connected to the right second pressure roller mounting seat 128 through the pull rods on both sides, and the right second pressure roller mounting seat 128 is installed in front of the right second The pressure roller 127, the piston rod of the eighth cylinder is fixedly connected to the fourth connecting plate 1210, the fourth connecting plate 1210 is connected to the right small pressure roller mounting seat 1212 through the pull rods on both sides, and the right small pressure roller mounting seat 1212 is installed in front of the right small pressure roller 1211 , the right small pinch wheel 121 can rotate freely.

The piston rod of the sixth cylinder 121 stretches out, driving the second connecting plate 122 to move forward, the second connecting plate 122 drives the first right pressure roller mount 124 to move forward, and the right first pressure roller mount 124 drives the right first pressure roller 123 Move forward; the piston rod of the seventh cylinder 125 is stretched out, driving the third connecting plate 126 to move forward, the third connecting plate 12 drives the second right pressure roller mounting seat 128 to move forward, and the right second pressure roller mounting seat 128 drives the right second pressure roller mounting seat 128 to move forward. The pressure roller 127 moves forward; the piston rod of the eighth cylinder 129 stretches out to drive the fourth connecting plate 1210 to move forward, the fourth connecting plate 1210 drives the right small pressure roller mounting seat 1212 to move forward, and the right small pressure wheel mounting seat 1212 drives the right small pressure roller mounting seat 1212 to move forward. The small pressure roller 1211 moves forward; the right first pressure roller 123, the right second pressure roller 127, and the right small pressure roller 121 simultaneously drive the diaphragm on the right side to move.

As shown in Figure 7, described lifting mechanism 3 comprises first motor 31, first pulley 32, first belt 33, second pulley 34, screw mandrel 35, screw mandrel flange seat 36, flange seat mounting plate 37 and Mounting plate 38, the first motor 31 is installed on the working panel 6 rear, the first motor output shaft is fixedly connected to the first pulley 32, the first pulley 32 is connected to the second pulley 34 by the rotation of the first belt 33, the second pulley 34 is fixedly connected to the wire Rod 35, lead screw nut is provided with screw mandrel flange seat 36, and screw mandrel 35 is threadedly connected screw mandrel flange seat 36, and screw mandrel flange seat 36 is fixedly installed on flange seat mounting plate 37, and flange seat mounting plate 37 Fixedly installed on the mounting plate 38, the mounting plate 38 is installed in front of the working panel 6, a slide block 39 is provided behind the mounting plate 38, a slide rail 310 is provided in front of the working panel, the slide block 39 is slidably connected to the slide rail 310, and the diaphragm pressing mechanism 1 Fixedly installed in front of the mounting plate 38 , the left diaphragm driving mechanism 11 is installed in the front left side of the mounting plate 38 , and the right diaphragm driving mechanism 12 is installed in the front right side of the mounting plate 38 .

Specifically, the first motor 31 drives the first pulley 32 to rotate, the first pulley 32 drives the second pulley 34 to rotate synchronously through the first belt 33, the second pulley 34 drives the screw rod 35 to rotate, and the screw rod 35 drives the flange seat mounting plate 37 moves up and down, and the flange seat mounting plate 37 drives the mounting plate 38 to move up and down along the slide rail 310, and then drives the diaphragm pressing mechanism 1 to move up and down.

As shown in Figures 8 and 9, the reel mechanism 2 includes a second motor 21, a third pulley 22, a second belt 23, a fourth pulley 24, a rotating shaft 25, a rolling needle 26, a rolling needle mouth 27 and a first cylinder 28, The second motor 21 is fixedly installed on the working panel 6 rear, and the output shaft of the second motor is fixedly connected to the third pulley 22, and the third pulley 22 is connected to the fourth pulley 24 by the rotation of the second belt 23, and the fourth pulley 24 is fixedly connected to the rotating shaft 25, and the rotating shaft 25 fronts install rolling needle 26, and rotating shaft 25 rears are connected rotating shaft mounting plate 29 by bearing rotation, and the first cylinder piston rod connects rotating shaft mounting plate 29, and rolling needle 26 can be inserted in rolling needle nozzle 27 and rotates. When the pole piece needs to be wound, the piston rod of the first cylinder shrinks to drive the winding needle 26 to protrude from the front of the working panel 6, the second motor 21 drives the third pulley 22 to rotate, and the third pulley 22 drives the fourth pulley through the second belt 23 24 rotates, the fourth belt pulley 24 drives the rotating shaft 25 to rotate, and the rotating shaft 25 drives the winding needle 26 to wind the material.

As shown in Figure 10, the diaphragm cutting mechanism 5 includes a second cylinder 51, a cutter 52, a third cylinder 53 and a cutter backing plate 54, the piston rod of the second cylinder is fixedly connected to the cutter 52, and the front of the cutter 52 is provided with sawtooth. The piston rod of the third cylinder is fixedly connected to the cutter backing plate 54 , and the cutter backing plate is provided with a groove matched with the cutter 52 . The second cylinder 51 drives the cutter 52 to move forward, the third cylinder 53 drives the cutter backing plate 54 to move forward, and the cutter 52 cuts off the diaphragm and enters the groove.

As shown in Figure 11 , the sticking end tape mechanism 4 includes a ninth cylinder 41, a rubber sticking wheel 42, a sticking wheel rotating shaft 43, a sticking wheel rotating shaft mounting seat 44 and a third motor 45, and the piston rod of the ninth cylinder is fixedly connected to the sticking stick. Wheel shaft mount 44, glue wheel shaft 43 is rotated and connected to glue wheel shaft mount, glue wheel 42 suits glue wheel shaft 43, glue wheel 42 has glue on its surface, and the third motor 45 drives the glue wheel shaft 43 to rotate , the gluing wheel rotating shaft 43 drives the gluing wheel 42 to rotate, and the ninth cylinder 41 drives the gluing wheel 42 to stretch out to contact with the electric core for gluing.

As shown in Figure 12, the winding device also has a pole piece outsourcing adsorption mechanism 7, and the pole piece outsourcing adsorption mechanism 7 includes a tenth cylinder 71, a rocker arm mother part 72, a rocker arm component 73, a rocker arm shaft 74 and a pole piece suction Part 75, the piston rod of the tenth cylinder is fixedly connected to the rocker arm mother part 72, and the rocker arm mother part 72 is shaped like a rocker arm, and the rocker arm mother part 72 is engaged with the rocker arm sub-part 73, and the rocker arm sub-part 73 is fixedly connected to one end of the rocker arm shaft 747 , the other end of the rocker shaft 74 is fixedly connected to the pole piece suction piece 75, and the tenth cylinder 71 stretches out to drive the pole piece suction piece 75 to rotate a certain angle to pull the pole piece together, and the tenth cylinder 71 shrinks the pole piece suction piece 75 to reset , to drive the pole piece to rotate, to avoid being cut off by the cutter 52.

The above content is a further detailed description of the utility model in conjunction with specific preferred embodiments. It cannot be determined that the specific implementation of the utility model is only limited to these descriptions. Under the premise of the concept of the utility model, some simple deduction or replacement can also be made, which should be regarded as belonging to the protection scope of the utility model.

Claims (10)

1. The winding device of the lithium-ion battery winding machine is installed on the working panel. It is characterized in that it includes a diaphragm pressing mechanism, a reel mechanism, a lifting mechanism, a termination tape mechanism and a diaphragm cutting mechanism. The diaphragm pressing mechanism is installed on In the middle of the working panel, the lifting mechanism is installed under the diaphragm pressing mechanism. The lifting mechanism controls the overall lifting of the diaphragm pressing mechanism. The diaphragm pressing mechanism presses and fits the two diaphragms. The diaphragm separates the positive and negative electrodes. The two diaphragms of the pole piece are wound and processed, and the stop tape mechanism applies glue to the wound pole piece. 2. The winding device of the lithium-ion battery winding machine according to claim 1, wherein the diaphragm pressing mechanism comprises a left diaphragm driving mechanism and a right diaphragm driving mechanism, and the left diaphragm driving mechanism drives the left diaphragm Move, the right diaphragm drive mechanism drives the right diaphragm to move, the two diaphragms are pressed tightly between the left diaphragm drive mechanism and the right diaphragm drive mechanism, the negative electrode is located inside the left and right diaphragms, and the positive electrode is located outside the right diaphragm. 3. The winding device of the lithium-ion battery winding machine according to claim 1, wherein the lifting mechanism comprises a first motor, a first pulley, a first belt, a second pulley, a screw mandrel, and a screw mandrel Flange seat, flange seat mounting plate and mounting plate, the output shaft of the first motor is fixedly connected to the first pulley, the first pulley is connected to the second pulley through the rotation of the first belt, the second pulley is fixedly connected to the screw, and the flange seat of the screw There is a screw nut inside, the screw thread is connected to the screw flange seat, the screw flange seat is fixed on the flange seat mounting plate, the flange seat mounting plate is fixed on the mounting plate, and the diaphragm pressing mechanism is fixed on the mounting plate plate. 4. The winding device of the lithium-ion battery winding machine according to claim 1, wherein the reel mechanism includes a second motor, a third pulley, a second belt, a fourth pulley, a rotating shaft, a winding needle, Needle rolling nozzle and the first cylinder, the output shaft of the second motor is fixedly connected to the third pulley, the third pulley is connected to the fourth pulley through the rotation of the second belt, the fourth pulley is fixedly connected to the rotating shaft, the rolling needle is installed in front of the rotating shaft, and the rear of the rotating shaft is rotated by bearings Connect the rotating shaft mounting plate, the piston rod of the first cylinder is connected to the rotating shaft mounting plate, and the rolling needle can be inserted into the rolling needle mouth. 5. The winding device of the lithium-ion battery winding machine according to claim 1, characterized in that: the diaphragm cutting mechanism comprises a second cylinder, a cutter, a third cylinder and a cutter backing plate, and the piston of the second cylinder The rod is fixedly connected to the cutter, and the front of the cutter is provided with sawtooth, and the piston rod of the third cylinder is fixedly connected to the cutter backing plate, and the cutter backing plate is provided with a groove matched with the cutter. 6. The winding device of the lithium-ion battery winding machine according to claim 2, characterized in that: the left diaphragm driving mechanism includes a fourth cylinder, a left large pressure roller, a mounting seat for a left large pressure roller, and a fifth cylinder , the first connecting plate, the left small pressure roller and the left small pressure roller mounting seat, the piston rod of the fourth cylinder is fixedly connected to the left large pressure roller mounting seat, the left large pressure roller is installed in front of the left large pressure roller mounting seat, and the fifth cylinder piston rod The first connecting plate is fixedly connected, and the two sides of the first connecting plate are connected to the left small pressure wheel mounting seat through the tie rods. The left small pressure wheel is installed in front of the left small pressure wheel mounting seat, and the left large pressure wheel and the left small pressure wheel jointly drive the left Diaphragm moves. 7. The winding device of the lithium-ion battery winding machine according to claim 2, characterized in that: the right diaphragm driving mechanism includes a sixth cylinder, a second connecting plate, a first right pressure wheel, a first right pressure wheel Wheel mounting seat, the seventh cylinder, the third connecting plate, the second right pressure roller, the second right pressure roller mounting seat, the eighth cylinder, the fourth connecting plate, the right small pressure roller and the right small pressure roller mounting seat, the sixth The cylinder piston rod is fixedly connected to the second connecting plate, and the second connecting plate is connected to the right first pressure roller mounting seat through the tie rods on both sides. The right first pressure roller is installed in front of the right first pressure roller mounting seat, and the seventh cylinder piston rod is fixedly connected to the The third connecting plate, the third connecting plate is connected to the right second pressure roller mounting seat through the pull rods on both sides, the right second pressure roller is installed in front of the right second pressure roller mounting seat, the eighth cylinder piston rod is fixedly connected to the fourth connecting plate, The fourth connecting plate connects the right small pressure roller mounting seat by the pull rods on both sides, and the right small pressure roller mounting seat front is installed with the right small pressure roller. 8. The winding device of the lithium-ion battery winding machine according to claim 1, characterized in that: the stop tape application mechanism includes a ninth cylinder, a rubber application wheel, a rubber application wheel shaft, and a rubber application wheel shaft mounting seat And the third motor, the piston rod of the ninth cylinder is fixedly connected to the mounting seat of the gluing wheel shaft, the rotating shaft of the gluing wheel is connected to the mounting seat of the gluing wheel shaft in rotation, the gluing wheel set is attached to the gluing wheel shaft, and the third motor drives the gluing wheel shaft to rotate . 9. The winding device of the lithium-ion battery winding machine according to claim 3, characterized in that: a slider is provided behind the mounting plate, a slide rail is provided on the working panel, and the slide block is slidably connected to the slide rail. 10. The winding device of the lithium-ion battery winding machine according to claim 1, characterized in that: it also includes a pole piece outsourcing adsorption mechanism, and the pole piece outsourcing adsorption mechanism includes a tenth cylinder, a rocker arm master, a rocker arm Sub-parts, rocker arm shaft and pole piece suction parts, the tenth cylinder piston rod is fixedly connected to the rocker arm mother part, the rocker arm mother part is 匚-shaped, the rocker arm mother part is engaged with the rocker arm sub-part, and the rocker arm sub-part is fixedly connected One end of the rotating shaft of the rocker arm is fixedly connected to the other end of the rotating shaft of the rocker arm with the pole piece suction piece.